"Stadium of that team has 58 000 seats. Due to only electric scoreboard max. possible attendance in the match is only 40 000.
Manager can set ratio of home-away fans 85-15 or 95-5 or something between. In this case it means: 49 300-8700 or 45 100-2 900 or something between.
While there 58 000 theoretical seats, but only 40 000 real, and due to gamesettings all real seats are for home fans. And away fans can "sit" only on their sofas before the TVs, eat the popcorn and imagine that they are in the stadium "